1. Measure Your Hand

2. 1 / 8 Measure your hand. How long is it?

3. 2 / 8 If you know the length of your hand, you can estimate the length of other objects.

4. 3 / 8 A leopard slug is about the same size as your hand. About how long is it?

5. 4 / 8 A hamster is a little shorter than your hand. About how long is it?

6. 5 / 8 The largest praying mantis is a little longer than your hand. About how long is it?

7. Look around your classroom. What is about the same size as your hand? 6 / 8

8. Estimate the length. 7 / 8

9. End Estimate the length. Then measure it. Line up the end of the object with the zero mark on your ruler. 8 / 8